Viscoelastic damping truss vibration isolator

A viscoelastic damping truss vibration isolator comprises an upper mounting seat (1), spherical gaskets (2), a spring (3), a spherical base (4), an inner barrel (5), an outer barrel (6), a damping adhesive layer (7), a limit bolt (8), a limit retainer ring (9), a limit nut (10), an end cap (11) and a lower mounting seat (12). The inner barrel (5) and the outer barrel (6) are separated and injected with damping adhesive and are allowed to displace relatively, the relative displacement of the inner barrel (5) and the outer barrel (6) is limited within the reasonable range by the limit bolt (8), and supporting and vibration isolating of a damping truss are realized. Compared with the prior art, the viscoelastic damping truss vibration isolator has the advantages that buffer is realized by deformation of the spring (3) and the damping adhesive layer (7), vibration coupling is effectively avoided, and influence on the truss supporting structure from vibration is reduced. Meanwhile, the viscoelastic ...

Method for designing focal plane spliced reflector

The invention provides a method for designing a focal plane spliced reflector. The method includes the steps that firstly, according to an optical system, the geometric position relationship among an exit pupil plane, an image plane, a reflection face of the spliced reflector and a sensor is determined, then the shape and the position of the reflection face of the spliced reflector are determined according to the acquired geometric position relationship, and finally according to the shape and the position of the reflection face of the spliced reflector, the shape, the size and the position of the spliced reflector are acquired, and therefore design of the focal plane spliced reflector is finished. Compared with the prior art, the method has the advantages that the same target can be imaged simultaneously, lens weight is low, the problem that mechanical splicing operation is limited to the structural process is solved, practicality is higher, the gap of the method for designing the focal ...

Light pole communication base station

The utility model discloses a light pole communication base station belongs to the radio communication field. Including the lighting device of the body of rod with the installation body of rod, the upper portion installation antenna tied in a bundle of the body of rod, installation RRU support on the body of rod of antenna below tied in a bundle, a plurality of antenna booms of installation on the body of rod of RRU support below. When guaranteeing normal lighting, install the installation requirements of stacked antenna support with communication equipment such as the antenna that satisfies three big operators simultaneously and RRU under the RRU support, the antenna boom is located RRU support below, behind all kinds of antennas of installation and equipment, can reduce the windage of light pole, and the overall stability of improvement communication base station has overcome the not enough of current light pole basic station.

Pulley shaft mounting device

The invention relates to the field of crawler cranes, in particular to a pulley shaft installation device which comprises a base, a fixed seat and a movable seat, the fixed seat and the movable seat are arranged on the two sides of the base respectively, the movable seat is movably installed on the base, and a first pushing sliding plate is installed on the fixed seat in a sliding mode. The first pushing sliding plate is provided with a pushing sleeve used for being inserted from a hole in one side of a pulley block support to support the pulley block support, a second pushing sliding plate is slidably installed on the movable base, and the second pushing sliding plate is provided with a first oil cylinder with a telescopic part capable of pushing a pulley shaft to move. And the pulley shaft can be driven to be inserted into the top sleeve from the hole in the other side of the pulley block bracket. According to the pulley shaft mounting device, the pulley shaft can be mounted, the mounting ...

Flexible supporting method of large-aperture lens

The invention discloses a flexible supporting method of a large-aperture lens, which comprises the steps of; firstly, machining three bosses on the excircle of a circular lens base with a certain thickness at intervals of 120 DEG , machining a connecting part with a cuboid structure on the outer side of each boss, machining an installing hole and a pin hole on the outer side of each boss along the radial direction of the lens base, machining an installing hole and a pin hole on the connecting part along the axial direction of the lens base, machining an installing hole on each boss along the axial direction of the lens base, and machining a small boss with a step on the inner side of each boss; secondly, machining three corresponding installing surfaces on the excircle of the lens at intervals of 120 DEG, and machining radial flexible elements and axial press plates; thirdly, bonding the radial flexible elements with the lens, and fixing the bonded assembly in the lens base through the ...

Focal plane adjustment method for off-axis three-lens camera

The invention belongs to the technical field of aerospace optical remote sensors, and relates to a focal plane adjustment method for an off-axis three-lens camera. The off-axis three-lens camera has strict requirements on focal adjustment, the infinite coplanar performance of each visual field of the focal plane of the camera needs to be guaranteed, the two ends of a CCD device in an focal plane assembly of the camera need to be guaranteed to be on the same horizontal plane, and the center of the CCD device of the camera and a satellite reference need to be guaranteed to be within the error range. Especially for an off-axis three-lens system, a certain inclination angle exists between the position of the imaging CCD device and the mounting plane of the focal plane, when adjustment is performed on the above assembling requirement, and results of the other two indexes also change correspondingly, so that the above requirement is more difficult to meet. The invention provides a method for ...

Welding system of handle of a knife robot

The utility model discloses a welding system of handle of a knife robot. Including switch board, robot, demonstrator, TIG welding equipment with be used for carrying the frock clamp of cutter, the robot passes through the wire and is connected with the switch board and is controlled by the switch board, and the demonstrator passes through the wire to be connected with the switch board, and TIG welding equipment's welder installs in the robot, the last contact pick up that is equipped with of welder, install welding seam automatic tracking system and welding parameter database in the switch board, frock clamp establishes near the robot to make robot control welder can reach the frock clamp position. The utility model has the advantages of, can realize the automation of welding of handle of a knife, welding quality's stability obtains improving, and production efficiency obtains improving, welding seam microstructure is more evenly tiny, and heat affected area and welding seam are narrow, ...

Large capacity light pole communication base station

The utility model discloses a large capacity light pole communication base station belongs to the radio communication field. Including the lighting device of the body of rod with the installation body of rod, the upper portion installation antenna tied in a bundle of the body of rod, antenna tied in a bundle below installation RRU support, lighting device installs the below at the RRU support, lighting device includes that many are followed the even interval distribution street lamp of body of rod circumference, and the street lamp passes through linking bridge and installs on the body of rod, the below of RRU support installation stacked antenna support, the antenna boom that lies in top layer in the stacked antenna support is connected with linking bridge, the lower part and the linking bridge of RRU support are connected. Install the stacked antenna support below the RRU support, expanded the installed capacity of basic station greatly to satisfy the demand that all kinds of operators ...

Medicine for curing and preventing upper respiratory infection and its preparing method

A medicine for treating upper respiratory disease is prepared with 19 kinds of Chinese medicinal materials including Flos Chrysanthemi Indici, common perilla, Folium isatidis, Radix zanthoxyli, HerbaSchizonepetae, etc. It is prepared into cigarette-like inhalatant, spray preparation and nose drop for use alone or synergetically to treat acute and chronic rhinitis, pharyngitis, trachitis and other upper respiratory diseases.

Medicine for curing and preventing upper respiratory infection and stopping-smoking, and its preparing method

Preservation method for biological wet carcase cultural relics after being dug out of earth

The invention discloses a preservation method for unearthed cultural relics of biological wet dead bodies. The multi-site artery infusion fluid and the body cavity complementary-injection infusion are carried out firstly, the infusion fluid is formed by mixing 4 percent to 12 percent of methanal, 6 percent to 20 percent of absolute ethyl alcohol, 0.1 percent to 1.5 percent of glycerin, 0.2 to 1.2 percent of thymol, 0.85 percent to 0.95 percent of sodium chloride and distilled water which serves as the rest part according to volume percentage, flow velocity for liquid medicine infusion ranges from 1 mul/s to 10 mul/s, the injection pressure ranges from 70 mmHg to 100 mmHg, and the total amount of the infusion fluid ranges from 3 percent to 6 percent of the weight of the wet dead bodies to be infused; and then the wet dead bodies are sealed and integrally immersed in the preservative fluid under the conditions of constant temperature and constant humidity. By adopting the method, the cultural ...

Zero-gravity horizontal flow type small sewage filtering system

The zero-gravity horizontal-flow type small sewage filtering system comprises a water collecting tank, an outflow device is arranged on the side wall of the bottom of the water collecting tank, a containing box and a dosing box are fixedly connected to the side wall of the top of the water collecting tank, one side of the containing box is open, a collecting frame is slidably connected into the containing box, and a water inlet is formed in the collecting box. The collecting frame is arranged in a rectangular shape, a filtering device is arranged at the bottom of the collecting frame, an outflow opening is formed in the bottom side wall of the containing box, a mixing barrel is fixedly connected to the top side wall of the containing box, and a screw rod is fixedly connected to the interior of the mixing barrel; and the bottom of the mixing cylinder penetrates through the upper side wall of the placing box and is positioned right above the collecting frame. The sewage treatment device is ...